MEASUREMENT OF THE FORM-FACTORS IN THE DECAY D+-]KBAR-STAROE+VE

被引：111

作者：

ANJOS, JC

APPEL, JA

BEAN, A

BRACKER, SB

BROWDER, TE

CREMALDI, LM

DUBOSCQ, JE

ELLIOTT, JR

ESCOBAR, CO

GIBNEY, MC

HARTNER, GF

KARCHIN, PE

KUMAR, BR

LOSTY, MJ

LUSTE, GJ

MANTSCH, PM

MARTIN, JF

MCHUGH, S

MENARY, SR

MORRISON, RJ

NASH, T

ONG, P

PINFOLD, J

PUNKAR, G

PUROHIT, MV

SANTORO, AFS

SCHMIDT, DM

SIDHU, JS

SLIWA, K

SOKOLOFF, MD

SOUZA, MHG

SPALDING, WJ

STREETMAN, ME

STUNDZIA, AB

WITHERELL, MS

机构：

[1] CARLETON UNIV,OTTAWA K1S 5B6,ONTARIO,CANADA

[2] CTR BRASILEIRO PESQUISAS FIS,BR-20000 RIO DE JANEIRO,BRAZIL

[3] UNIV CINCINNATI,CINCINNATI,OH 45221

[4] UNIV COLORADO,BOULDER,CO 80309

[5] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[6] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA

[7] PRINCETON UNIV,PRINCETON,NJ 08544

[8] UNIV MISSISSIPPI,OXFORD,MS 38677

[9] UNIV SAO PAULO,SAO PAULO,BRAZIL

[10] UNIV TORONTO,TORONTO M5S 1A7,ONTARIO,CANADA

[11] YALE UNIV,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.65.2630

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the three form factors governing the decay D+K*0e+e, observed in Fermilab photoproduction experiment E691, using the complete decay distribution of the data. The results are A1(0)=0.46±0.05±0.05, A2(0)=0.0±0.2±0.1, and V(0)=0.9±0.3±0.1 for the two axial-vector and the vector form factors, respectively. The K *0 mesons have a ratio of longitudinal to transverse polarization of 1.8-0.4+0.6±0. 3. These results are significantly different from values predicted by a number of different models. © 1990 The American Physical Society.

引用

页码：2630 / 2633

页数：4

共 16 条

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